RU216192U1 - FOLDING WHEELCHAIR LIFT FOR PASSENGER CARS - Google Patents

Abstract

The folding wheelchair lift (SPIK) is designed to serve wheelchair users in railway transport and contains a hydraulic drive, the fixed end of which is fixed on the plate base of the lift, equipped with bolts for installation inside the car, and the movable end is equipped with a landing platform for receiving and lifting wheelchairs from the railway tracks into the opening of the open side doors of the passenger car. Distinctive features of SPIK are the execution of the hydraulic drive of the lift in the form of a manipulator containing a support with free rotation shafts in the vertical plane of the reference end of the hydraulic cylinder with a retractable rod, as well as the reference end of the upper first and lower second booms. The free ends of the upper first and lower second booms are connected to the corresponding shafts of rotation of the movable rack. The free end of the rack is equipped with a mechanism for fastening and deploying (MKR) a landing platform for a disabled person (PPI) - a wheelchair user. MKR contains a PPI suspension system at the lower end of the retractable rack and a manual suspension control lever. The suspension system includes two kinematic links with two degrees of freedom, the first of which is mounted on the carrier shaft of the landing platform, and the second on its side adjacent to the outrigger. The specified PPI is equipped with folding ramps on the front and rear sides, with two fixed positions: vertical to protect the wheelchair from the slope and horizontal - for free entry or exit from the PPI in its extreme positions in height - at the level of the platform surface and the floor of the car, respectively. A device for detecting obstacles to the movement of the PPI is installed on the lower side of the PPI.

SPIK has a simple design and advanced functionality. 3 w.p. f-ly, 7 ill.

Description

Technical field

The utility model relates to hoisting and transport vehicles for disabled people in wheelchairs in railway transport, specifically to folding wheelchair lifts (SPIK) for passenger cars.

State of the art

Known SPIK for passenger cars /RU 44109, RU 17039/, containing a folding platform for wheelchairs with a drive for its vertical and horizontal movement and with the possibility of fastening them in the folded state on the outer end surface of the last car of the train in the immediate vicinity of the entrance vestibule door.

The disadvantage of the known SPIC is the limited use in railway transport (RT), namely, the possibility of boarding disabled people only in the last railway car from its end side.

It is desirable to create a SPIC for disabled people in wheelchairs with the possibility of boarding them in any carriage of a passenger train.

Such a SPIC is known for disabled people in wheelchairs with the possibility of boarding them in any railway carriage /US 5165839/ through the side doors.

The specified SPIK /US 5165839/ is made with the possibility of mounting in a vertical folding position on a rotating base inside a railway car on one side of the front door.

SPIK /US 5165839/ contains a drive, the fixed end of which is fixed on a plate base inside the car, and the movable end is equipped with a power platform for receiving and lifting wheelchairs from the railway tracks into the opening of the open doors of the passenger car.

In this case, the drive is made in the form of a movable elevator, containing a tower with a retractable frame, provided, at the retractable end, with means for fastening a power platform for wheelchairs.

The disadvantage of the known SPIK /US 5165839/ is the complexity and bulkiness of the design, as well as the high requirements for the quality of the surface (height, unevenness and distance from the car) passenger boarding areas adjacent to the railway tracks.

In general, these shortcomings make it difficult to use the known SPIC /US 5165839/ wheelchair users in the conditions of heterogeneity and snow cover of the railway lines.

Statement of the utility model problem

The objective of the utility model is to eliminate the indicated shortcomings of the known /US 5165839/ folding wheelchair lift (SPIK), and the technical result is to expand the functionality of the specified SPIK for servicing disabled wheelchair users of the railway.

The essence of the utility model

The solution of the problem and the achievement of the claimed technical result is ensured by the fact that the folding wheelchair lift (SPIK) for passenger cars contains a hydraulic drive, the fixed end of which is fixed on the plate base of the lift, equipped with bolts for installation inside the car, and the movable end is equipped with a landing platform for acceptance and lifting of wheelchairs from the railway tracks into the opening of the open doors of the passenger car.

Distinctive features of SPIK are the execution of the hydraulic drive of the lift in the form of a manipulator containing a support with free rotation shafts in the vertical plane of the reference end of the hydraulic cylinder with a retractable rod, as well as the reference end of the upper first and lower second booms. The free ends of the upper first and lower second booms are connected to the corresponding shafts of rotation of the movable rack. The free end of the rack is equipped with a mechanism for fastening and deploying (MKR) a landing platform for a disabled person (PPI) - a wheelchair user. MKR contains a PPI suspension system at the lower end of the retractable rack and a manual suspension control lever. The suspension system includes two kinematic links with two degrees of freedom, the first of which is installed on the bearing shaft of the landing platform, and the second - on its side, adjacent to the outrigger. The free shaft of the first link is installed with the possibility of rotation in the lower part of the rack, and the second link - in the retractable end of the rod of the spring cylinder, the base of which is fixed on the rotation boss installed in the central part of the remote rack from the side of its removal. The manual suspension control lever PPI is installed on the side surface of the remote rack with the possibility of its rotation in the vertical plane and is equipped with a PPI horizontal position lock. The specified PPI from the front and rear sides is equipped with folding ramps, with two fixed positions: vertical to protect the wheelchair from the slope and horizontal - for free entry and exit from the PPI in its extreme positions in height - at the level of the platform surface and the floor of the car, respectively. On the lower side of the PPI, an obstacle detection device is installed, made in the form of a pressure rail, kinematically connected to an electric relay (limit switch), the normally closed contacts of which are connected to the power supply circuit of the manipulator control panel. To transfer the PPI from the initial vertical position to the horizontal working position, a manual grip is installed on the free end of its seating plate from the end side.

Evidence of achievement of the claimed technical result

The implementation of the drive in the form of a manipulator of the specified design in the SPIK allows the latter to obtain a new property, which consists in the possibility of an extended range (both in height and in range) of removal from the car of the boarding platform to the platform for boarding/disembarking wheelchair users.

In turn, this new property makes it possible to ensure the landing of disabled people - wheelchair users of the railway in the conditions of heterogeneity of landing sites and snow cover of the railway tracks.

These technical advantages make it possible to expand the functionality of the specified SPIC and achieve the claimed technical result.

Link to drawings

The essence of the utility model is illustrated by the drawings shown in Fig. 1 - fig. 6.

In FIG. 1 and FIG. 2 shows a view of the SPIC from the front and back sides, respectively. In FIG. 3 shows a view of the SPIC in the deployed position in the opening of the front door of the electric train. In FIG. 4 is a drawing explaining the design of the SPIK manipulator. In FIG. 5 and FIG. 6 is a view of the SPIK in the position for loading and unloading the landing platform for a wheelchair user (PPI) at the level of the ground and the floor of the entrance door, respectively. In FIG. 7 - table of technical characteristics of the SPIK prototype.

In FIG. 1-6 are marked:

1 - hydraulic drive (manipulator);

1.1 - manipulator support 1:

1.1.1, 1.1.2, 1.1.3 - support shaft rotation of the reference end of the hydraulic cylinder 1, the upper first 1.4 and the lower second 1.5 arrows, respectively;

1.2 - cabinet for related power supply equipment and drive operation control;

1.3 - hydraulic cylinder of the manipulator 1;

1.4 - retractable hydraulic cylinder rod 1.3;

1.5 - the first upper boom of the manipulator 1;

1.6 - the second lower boom of the manipulator 1;

1.7 - retractable stand;

1.7.1, 1.7.2 - shafts of rotation of the rack 1.7;

1.8 - suspension system (SP) of the landing platform to the retractable rack:

1.8.1, 1.8.2 - the first and second kinematic link (KZ) of the joint venture, respectively;

1.8.3, 1.8.4 - secondary and primary shaft short circuit, respectively;

1.9 - manual suspension control lever;

1.10 - PPI emergency lifting handle;

1.11 - spring cylinder;

1.12 - rod of a retractable spring cylinder;

1.13 - boss rotation of the rod of the hydraulic cylinder;

1.14 - lock of the horizontal position of the platform 3;

1.15 - hydraulic pump control panel;

1.16 - remote control panel;

2 - plate base SPIK;

3 - landing platform for the disabled (PPI) - wheelchair;

3.1, 3.2, 3.3, 3.4 - landing plate, inner ramp, outer ramp and lifting handle PPI 3;

4 - device for determining the presence of obstacles;

4.1 - push rail;

4.2 - electrical relay (limit switch).

Disclosure of the essence of the utility model

According to FIG. (1-6) a folding wheelchair lift (SPIK) for passenger cars of railway transport contains a plate base 2. The base 2 is equipped with bolted reinforcement (not shown in the figures) for mounting on the floor of the car in close proximity to one of the sides of the car entrance door. On the upper side of the base 2 there is a support 1.1 for the hydraulic drive 1 and a cabinet 1.2 for the associated equipment for power supply and control of the drive 1. landing sites for wheelchair users.

To do this, the drive 1 SPIK is made in the form of a manipulator containing the above support 1.1, mounted on a plate base 2. The support 1.1 is equipped with a shaft 1.1.1 of free rotation in the vertical plane of the reference end 1.3 of the hydraulic cylinder with a retractable rod 1.4, as well as shafts 1.1.2 , 1.1.3 rotation of the reference end of the upper first 1.5 and lower second 1.6 arrows, respectively.

The free ends of the arrows 1.5, 1.6 are connected to the corresponding rotation shafts 1.7.1, 1.7.2 in the retractable rack 1.7. The lower end of the retractable rack 1.7 is equipped with a mechanism for fastening and deployment (MKR) boarding platform 3 for the disabled (PPI) - wheelchair users. The specified mechanism contains the suspension system 1.8 PPI 3, mounted on the lower end of the retractable rack 1.7 and the lever 1.9 for manual control of the suspension PPI 3 system 1.8. Suspension system 1.8 includes two kinematic links 1.8.1 and 1.8.2 of the same design with two degrees of freedom. The secondary shaft 1.8.3 of the first link 1.8.1 is coaxially connected to the bearing shaft of the landing platform 3, and the second link 1.8.2 is rigidly fixed on its side, adjacent to the outrigger 1.7. The input shaft 1.8.4 of the first link 1.8.1 is installed for rotation in the lower part of the rack 1.7, and the second link 1.8.2 - in the retractable end of the rod 1.12 of the spring cylinder 1.11, the base of which is fixed on the boss of rotation 1.13, installed in the central part of the remote rack 1.7 from its outer side. The lever 1.9 for manual control of the PPI 3 suspension is installed on the side surface of the outrigger 1.6 with the possibility of its rotation in the vertical plane and is equipped with a horizontal position lock 1.14 PPI 3. The specified PPI 3 will contain the landing plate 3.1, on the back and front sides of which folding slopes 3.2 and 3.3 are installed respectively. These ramps are installed on the corresponding rotation shafts with two fixation positions: a vertical position to protect the wheelchair from rolling off the plate 3.1 and a horizontal position - for free entry and exit from the PPI 3 in its extreme positions in height - at the level of the platform surface and the floor of the car, respectively.

To transfer PPI 3 from the initial vertical position to the horizontal working position and back, a lifting handle 3.4 is installed on the free end of its seating plate 3.1 from the end side.

On the bottom side of the plate 3.1 of the PPI 3, a device 4 for detecting the presence of obstacles is installed, made in the form of a pressure rail 4.1, kinematically connected to an electric relay (limit switch) 4.2, the normally closed contacts of which are included in the power supply circuit of the "Down" button of the remote control 1.17.

To extend the landing platform 3 to the landing site of a disabled person in the cabinet 1.2, a hydraulic pump with a control panel 1.15 for controlling the supply of hydraulic fluid to the hydraulic cylinder 1.2 is installed. To deploy the booms 1.5, 1.6 and extend the rack 1.7 with the landing platform 3 towards the platform, the rod 1.4 of the hydraulic cylinder 1.3 is connected to the upper boom 1.5 by the boss 1.16 of rotation. The hydraulic fluid pump is installed in the cabinet 1.2 of the power supply, and its remote control 1.15 with the control buttons "Up", "Down" and "Stop" is on the outside of the cabinet 1.2. For convenience and reliability of the control of the manipulator 1 when boarding and disembarking wheelchair users, the above buttons can be placed on the remote control panel 1.16. To do this, the console 1.16 can be equipped with a wired or wireless communication system with a control input of the hydraulic pump of the cabinet 1.2.

Work of the SPIC

The work of the SPIK is given on the example of its use for boarding wheelchair users in an electric train car and is as follows.

After stopping the electric train and fully opening its sliding doors (Fig. 3), the conductor, using the handle 3.4, transfers the PPI 3 to a horizontal position and, by turning the lever 1.9, engages the latch 1.4 with the open platform 3, preventing its reverse rotation. In this case, the rod 1.12 of the spring cylinder 1.11, connected kinematically with the landing plate 3.1, tensions the spring of the cylinder 1.11, storing potential energy to return the PPI 3 to its original vertical position. After transferring PPI 3 to the horizontal position, the conductor fixes its horizontal position with the appropriate pin (not shown in the figures).

Next, on the control panel 1.15, the conductor presses the "DOWN" button and holds it. In this case, hydraulic fluid is supplied to the hydraulic cylinder 1.3 in the direction of reducing the length of the rod 1.4. Reducing the length of the rod 1.4 leads to the lowering and at the same time to the extension of the boom 1.4 associated with it through the boss 1.13 and the rack 1.7 with the suspended platform 3 in the car door opening. When the platform reaches level 3 of the car floor, the conductor lowers the “Down” button on the remote control 1.15. In this case, PPI 3 is installed in a horizontal position outside the car on the left side of its exit door.

Then the conductor lays out the inner ramp 3.2 PPI 3 in a horizontal position towards the car and the outer ramp 3.3 - in a vertical position, ensuring the entry of a disabled person in a wheelchair onto the landing plate 3.1 from the car and delaying the wheelchair from the ramp from its front side, respectively.

The wheelchair user drives onto the landing plate 3.1, and the guide turns the inner ramp 3.2 into a vertical position and fixes it with the appropriate pin (not shown in the figures), preventing the wheelchair from moving off the rear side of the landing plate 3.1.

After a passenger in a wheelchair has entered the platform, by pressing and holding the DOWN button again, the conductor lowers the PPI 3 in the direction of the platform.

After the lower surface of the landing plate 3.1 comes into contact with the platform, the rail 4.1 presses on the limit switch 4.2. As a result, the limit switch 3.4 is triggered and its normally closed contacts open the power supply circuit of the "Down" button, and open contacts close the power supply circuit of the "Up" button of the control panel 1.15. As a result of this, PPI 3 stops and is ready for the reverse rise of PPI 3.

Next, the handler goes to the platform, transfers the outer ramp 3.3 from a vertical position to a horizontal one, freeing the wheelchair user from the PPI 3.

A disabled person in a wheelchair, lowered from the electric train, leaves from PPI 3 to the platform, making room for the next wheelchair user to rise from the platform to the electric train.

Next, another disabled person - a wheelchair user from the platform drives onto the landing plate 3.1 PPI 3 to lift him into the electric train car. After the arrival of the wheelchair user on the landing plate 3.1, the conductor moves the outer ramp 3.3 to a vertical position, fixing the wheelchair between the vertically mounted ramps 3.2 and 3.3.

After fixing the wheelchair on the PPI 3, the conductor presses and holds the "Up" button on the remote control panel 1.15. In this case, hydraulic fluid enters the hydraulic cylinder 1.3, pushing the rod 1.4 out of it. Under the action of the force of the retractable rod 1.4, the boom 1.5 rises, the rack 1.7 kinematically connected to it rises, and the PPI 3 installed at the lower end of the rack 1.7 rises. When the PPI 3 rises to the level of the car floor, the limit switch is activated, which turns off the hydraulic cylinder control relay, the hydraulic fluid supply to the hydraulic cylinder 1.3 stops and the PPI 3 stops.

Next, the conductor translates the inner slope 3.2 PPI 3 into a horizontal position towards the car, freeing the passage of the wheelchair inside the car of the electric train. When a disabled person - a wheelchair user leaves the seating plate 3.1 inside the car and the process of disembarking / boarding passengers on the electric train is completed, the conductor turns the ramps 3.2 and 3.3 on the surface of the seating plate 3.1 and repeatedly presses and holds the "Up" button.

In this case, the booms 1.5-1.6 rise and fold together, removing the rack 1.7 with PPI 3 from the doorway and allowing you to close the sliding door of the car. After closing the door of the car, the conductor turns the lever 1.9, releasing the horizontal position lock PPI 3. At the same time, under the action of the previously compressed spring, the rod 1.12 is drawn into the spring cylinder 1.11 and transfers the PPI 3 kinematically associated with it to a vertical folding position.

At the next boarding / disembarkation of a disabled person - a wheelchair user along the path of the electric train, the process of the SPIC operation is repeated.

This utility model is not limited to the examples of its implementation. Within the framework of this utility model, other variants of the execution of the elements of the SPIC are also possible, without going beyond the original application materials. The specified SPIC can be used in passenger cars with locomotive traction. In this case, the SPIK is installed in the vestibule of the car with the possibility of attaching its fixed part to the side wall of the vestibule. In addition, for automatic folding and deployment of ramps 3.2, 3.3 on the landing plate 3.1 PPI 3, their connecting shafts can be equipped with stepper gearboxes with electric control of their direction of rotation, connected by control to the corresponding buttons on the control panel 1.15 by the manipulator 1.

Industrial Applicability

The utility model has been developed at the prototype level. It has been successfully tested. The test results presented in the table (Fig. 7) showed the feasibility of the claimed utility model, its industrial applicability and achievement of the claimed technical result.

Claims (4)

1. A folding wheelchair lift for passenger cars, containing a hydraulic drive, the fixed end of which is fixed on the plate base of the lift, and the movable end is equipped with a folding boarding platform for wheelchair users (PPI) for receiving and lifting passengers in wheelchairs from the railway tracks into the opening open doors of a passenger car, characterized in that the hydraulic drive is made in the form of a manipulator, containing a support mounted on a plate base, equipped with a shaft of free rotation in the vertical plane of the reference end of the hydraulic cylinder with a retractable rod, kinematically connected to one of the arms of the manipulator, and also equipped with shafts rotation of the support end of the upper first and lower second booms, respectively, the free ends of which are connected to the corresponding rotation shafts in the retractable rack, the lower end of which is equipped with a fastening and deployment mechanism (MKR), which contains a PPI suspension system, installing mounted on the lower end of the retractable rack, and a manual control lever for the suspension system, which includes two kinematic links of the same design with two degrees of freedom, the secondary shaft of the first link is coaxially connected to the carrier shaft of the PPI, and the secondary shaft of the second link is rigidly fixed on its side side adjacent to remote rack, the input shaft of the first link is mounted for rotation in the lower part of the rack, and the second link - in the retractable end of the rod of the spring cylinder, the base of which is fixed on the rotation boss installed in the central part of the remote rack from its outer side, the manual suspension control lever PPI mounted on the side surface of the remote rack with the possibility of its rotation in a vertical plane and is equipped with a horizontal position lock PPI containing a landing plate, on the back and front sides of which there are folding ramps on the corresponding rotation shafts with two positions of fixation in a vertical position for protection and a wheelchair from rolling off the PPI and in a horizontal position - for free entry and exit from the PPI in its extreme positions in height - at the level of the platform surface and the floor of the car, respectively. 2. A folding lift according to claim 1, characterized in that a lifting handle is installed on the free end of the seating plate on the end side, and on its lower side there is an obstacle detection device made in the form of a pressure rail kinematically connected to an electric limit switch, normally closed contacts of which are included in the power supply circuit of the control panel buttons. 3. Folding lift according to claim 1, characterized in that the hydraulic pump is installed in a cabinet, and its control panel is built-in or remote with control buttons. 4. Folding lift according to claim 3, characterized in that the remote control panel is equipped with a wired or wireless communication system with the control input of the cabinet hydraulic pump.

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